UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'G18exxoBsYwT1VBHiaCIGUM4mcI2ayfyGCa5paDVngU=' 
WHERE 
  key_id = '281c7b1bf34270bceee5977d01b89632584e5d19bf57c40e3530c994249615e8' 
  AND (
    token = 'G18exxoBsYwT1VBHiaCIGUM4mcI2ayfyGCa5paDVngU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )